NCLEX-RN
NCLEX RN Predictor Exam
1. In the Gram Stain procedure, which component acts as the mordant?
- A. Crystal violet
- B. Methyl alcohol
- C. Iodine
- D. Safranin
Correct answer: C
Rationale: In the Gram Stain procedure, the mordant is Gram's Iodine. The purpose of the mordant is to form a complex with the crystal violet, enhancing its ability to bind to the cell wall. Crystal violet is actually the primary stain used in the Gram Stain procedure to initially color all cells. Methyl alcohol is the decolorizer that removes the crystal violet from certain cell types. Safranin is the counterstain used to stain those cells that did not retain the crystal violet stain after the decolorization step.
2. In which of these patients would rectal temperatures be measured?
- A. Older adult
- B. Critically ill patient
- C. School-age child
- D. Patient receiving oxygen via nasal cannula
Correct answer: B
Rationale: Rectal temperature measurement is preferred in situations where other routes are impractical or when the most accurate measure is necessary, such as in critically ill patients. The rectal route may be chosen due to its reliability in such cases. For older adults, school-age children, and patients receiving oxygen via nasal cannula, rectal temperature measurement is not typically indicated. Other routes like oral, tympanic, or axillary measurements are more commonly used in these populations due to comfort, convenience, and non-invasive nature.
3. When cleansing the genital area during perineal care, the nurse should _____________.
- A. cleanse the penis with a circular motion starting from the base and moving toward the tip.
- B. replace the foreskin after it has been pushed back to cleanse an uncircumcised penis.
- C. cleanse the rectal area first and then clean the patient's genital area.
- D. use the same area on the washcloth for each washing and rinsing stroke for a female resident.
Correct answer: B
Rationale: During perineal care, when cleansing the genital area of an uncircumcised male patient, it is crucial to retract the foreskin to clean the area underneath. This helps in the removal of smegma, a substance that can accumulate and lead to bacterial growth and infection if not cleaned properly. The foreskin should then be replaced back to its original position after cleaning to ensure proper hygiene and prevent any potential complications. Choices A, C, and D are incorrect because they do not address the specific care required for an uncircumcised penis, which involves retracting and replacing the foreskin.
4. When planning a cultural assessment, what component should the nurse include?
- A. Family history
- B. Chief complaint
- C. Medical history
- D. Health practices
Correct answer: D
Rationale: When conducting a cultural assessment, it is essential to include the patient's health practices. Health practices encompass the beliefs, values, and behaviors related to health and illness within a specific cultural context. These practices provide insight into how individuals perceive and manage their health. Family history, chief complaint, and medical history are crucial components of a patient's overall assessment but do not directly relate to a cultural assessment. Focusing on health practices allows the nurse to better understand the patient's cultural background and tailor care to meet their specific needs.
5. When preparing a patient on complete bed rest to eat, at what degree angle or more should you put the head of the bed up?
- A. 10
- B. 15
- C. 20
- D. 30
Correct answer: D
Rationale: The correct answer is D: 30. When a patient is on complete bed rest, it is essential to elevate the head of the bed at a 30-degree angle or more before meals. This position helps prevent choking and aspiration of food during eating by promoting proper swallowing and digestion. Choices A, B, and C are incorrect because they do not provide the optimal elevation needed to support safe and effective feeding for a patient on complete bed rest.
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